https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63319
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- And if yes, can it be also reproduced with building the pch file with -save-temps? Then perhaps you could attach the preprocessed source from which the pch is compiled, and tweak qhash.cpp to preprocess it too, but remove the pch header part from it and replace with include, then preprocess again.
